Windows 7 with Windows Live Mail 2011-recurrent log-in problem

I use Windows 7, with Windows Live Mail 2011 as my email utility- with my broadband and email provider being BT.com.
Recently an intermittent Live Mail sign-in problems keeps occurring- on opening Live Mail which has my correct saved password and mail.btinternet POP/SMTP details stored in it, instead of it automatically 'sending/receiving' emails, I get shown the small pop-up email log-in box that does have my saved log-in details already on it. Clicking 'connect' on this box makes the box vanish, then reappear seconds later with the same things shown. It still hasn't sent/checked emails.
Then BT Broadband Help programme, which is installed on my p.c. kicks in, saying it has detected a problem with my email programme- do I wish to 'Fix' or 'Ignore' it?
If I select 'Fix", the Help programme starts, and eventually I get shown the Results box, which states "No fault found-Working"
If I then exit the BT Broadband Help programme, plus close Windows Live Mail, and then restart Live Mail up from scratch, it connects to BT and sends/receives my emails fine. It's getting annoying.
Has this happened to anyone else?
If so, how did you fix it? Thanks,
Dave Grieve, Scotland.